Fuse-handling device



Sept. 21 1926.

H. s. RoBmsoN FUSE HANDLING DEVICE Filed March 25, 1925 //v VEN TOR /%/'/Q/? 5. Robinson A rrop/vsy I Patented Sept. 21,1928.

. UNITED STATES 7 1,600,247 PATENT OFFICE.

HA RLA N S. ROBINSON, OF ALBANY, NEW YORK.

FUSE-HANDLING Device.

Application filed March 23, 1925. Serial No. 17,658.

V in positive engagement with the fuse so that the operator may useboth hands for manipulating the, device in removing the fuse. Another object, is to provide a device which maybe easilyadjusted to accommodate fuses of different size; And still another object is to provide a device of an extremely simple I character, which will be absolutely reliable,

and which may be cheaply and easily con structed.

With these objects in view my invention consists in the novel elements and the arrangements and combinations thereof which are illustrated in the accompanying drawings in which- Fig. 1 is a general side elevation of my device showing its application to a fuse, and in which a portion of the handle is broken away for the purpose of showing how the device is adjusted for different size fuses;

Fig. 2 is a fragmentary view of the transformer, with a fuse therein, looking from the side toward the operator;

Fig. 3 is a fragmentary plan device;

Fig. 4 is a perspective view of the fuse grasping mechanism; and I Fig. 5 is a section on the line 55 of Fig. 3.

Referring to the drawings, my device, in its preferred form, comprises an angular block of hardwood or other insulating material l, which is somewhat shorter than the fuse to be handled, and which is slightly concaved on the lower side, as shown at 23, to fit the contour of fuse 2. Fitted upon the extremity of the block 1 is a tube 3 of fiber or other-rigid insulating material WlllOll is secured to the block 1 by means of screws 4. The tube 3 may be of any suitable length. Slidably fitted in the other end of the tube is the handle 5. Pivotally connected to the block 1, at 6 and 7, are the spaced hooks 8 and 9, respectively. These hooks are also view of my 7 connected together by the link'lO, so that. they move together in parallel relation. The hook 9 is bent at an angle A, which may be somewhat greater than 90 degrees. The upper part 11 of thehook is bent 180 degrees so that the portion 12 is separated from the portion 13 ajdistance substantially equal to one-half of the thickness ofthe block 1. The top of the block 1 is mortised to receive the portion 12 of hook 9, which extends into the block to a point slightly beyond theaxisof the tube 3. Attached to the extremity of the portion 12 is the clevis 1 1, which is threaded to receive the'fiber rod 15 secured therein by means of'the set-screw 16.. The fiber rod 15 is substantially in the axis of the tube 3 and extends to a point near the open end of that tube where it is threaded into a sleeve "24, and secured therein by means of the set-'screw17 Threaded into the other end of'the'sleeve'16 is the metal screw 18, which extends axially through the handle 5.

Interposed between the threaded sleeve 16 and the inner end of the handle 5 is the splral spring 19, which is sufficiently strong to prevent the handle 5 from sliding along the screw 18, when it is pushed into the tube 3 to release the fuse from the hooks. Inserted in the handle 5 is the screw 25, which passes through the angular slot 20 in the tube 3. I

' The operation of my device is as follows: The hooks 8 and 9 are slipped under the fuse 2, when the parts are in the position shown by the solid lines in Fig. 1, and the block 1 is allowed to rest upon the top of the fuse. The handle 5 is then drawn out to the position 5'. The pull on the handle is transmitted through the screw 18, the sleeve 24, the rod 15, and the clevis 14:, to the hook 9, which is drawn upwardly against the fuse to the position 9. The hook 8 being connected to hook 9 by link 10 is drawn upwardly against the fuse to the position 8, thus holding the fuse securely against the block 1.

When the handle 5 is withdrawn to the position 5, the screw 25 has reached the limit of its movement, and the handle may then be turned so that the screw 25 will pass into the ortion 21 of the slot 20, and thus lock the liooks in engagement with fuse. The

operator may then readily remove the fuse from the transformer. v

While the swing of hooks 8 and 9 is fixed,

they may be adjusted to engage a smaller fuse by means of the screw 18. By turning i be moved toward the block 1, so that in'their initial position they will be substantially as shown at 8 and 9 and, when the handle 5 is pulled from the tube they will be drawn much nearer the bottom of block 1, so that they will engage a smaller fuse.

While I have shown my device in its preferredform it is obvious that many changes may be made within the scope of the appended claims without departing from the spirit of my invention. It is therefore to be understood that I am not'limited to the precise details illustrate-d or described, and that the words which I have used in describing my invention are words of description and not of limitation.

i What I claim is 1. A fuse handling device comprising a handle, a block thereon, a hook pivotally connected to said block, means coacting with the handle for moving the hook toward the block, and adjustable means for limiting the throw of said hook.

2. A fuse handling device comprising a handle, a block thereon, a hook pivotally-connected to said block, means comprising a part of said handle for swinging the hook toward said block, andmeans for positively adjusting the movement of said hook.

3. A fuse handling device comprising a handle, a plurality of fuse-engaging hooks pivotally connected to said handle, means for swinging said hooks toward said handle, means for adjustingthe swing of said hooks,

block and to each other in spaced parallelism, means within said handle and operatively connected to one of said hooks for throwing the same toward or from said block, and means associated with thelastmentioned means for varying the throw of said hooks'from said block.

5. A fuse handling device comprising a block, a tubular member on said block, a member slidably mounted within said tubular member and operatively connected with a plurality of hooks on said block; said hooks being pivotally connectedto swing in parallelism toward said block when 'said secon'd-mentioned member is withdrawn from said tubular member.

HARLAN s. ROBINSON; 

